Which ion contains more electrons than protons, but also more protons than neutrons? $[\text{H} = ^1_1\text{H};\ \text{D} = ^2_1\text{H};\ \text{O} = ^{16}_8\text{O}]$
- A$\text{D}^-$
- B$\text{H}_3\text{O}^+$
- C$\text{OD}^-$
- D$\text{OH}^-$
Chemistry 9701 · AS & A Level · Atomic structure